src/motif/gsockmot.c

   1 /* -------------------------------------------------------------------------
   2  * Project: GSocket (Generic Socket) for WX
   3  * Name:    gsockmot.c
   4  * Purpose: GSocket: Motif part
   5  * CVSID:   $Id$
   6  * ------------------------------------------------------------------------- */
   7
   8 #include "wx/setup.h"
   9
  10 #if wxUSE_SOCKETS
  11
  12 #include <stdlib.h>
  13 #include <X11/Intrinsic.h>
  14 #include "wx/gsocket.h"
  15 #include "wx/unix/gsockunx.h"
  16
  17 extern XtAppContext wxGetAppContext();
  18
  19 static void _GSocket_Motif_Input(XtPointer data, int *fid,
  20                                  XtInputId *id)
  21 {
  22   GSocket *socket = (GSocket *)data;
  23
  24   _GSocket_Detected_Read(socket);
  25 }
  26
  27 static void _GSocket_Motif_Output(XtPointer data, int *fid,
  28                                   XtInputId *id)
  29 {
  30   GSocket *socket = (GSocket *)data;
  31
  32   _GSocket_Detected_Write(socket);
  33 }
  34
  35 bool _GSocket_GUI_Init(GSocket *socket)
  36 {
  37   int *m_id;
  38
  39   socket->m_gui_dependent = (char *)malloc(sizeof(int)*2);
  40   m_id = (int *)(socket->m_gui_dependent);
  41
  42   m_id[0] = -1;
  43   m_id[1] = -1;
  44
  45   return TRUE;
  46 }
  47
  48 void _GSocket_GUI_Destroy(GSocket *socket)
  49 {
  50   free(socket->m_gui_dependent);
  51 }
  52
  53 void _GSocket_Install_Callback(GSocket *socket, GSocketEvent event)
  54 {
  55   int *m_id = (int *)(socket->m_gui_dependent);
  56   int c;
  57
  58   if (socket->m_fd == -1)
  59     return;
  60
  61   switch (event)
  62   {
  63     case GSOCK_LOST:       /* fall-through */
  64     case GSOCK_INPUT:      c = 0; break;
  65     case GSOCK_OUTPUT:     c = 1; break;
  66     case GSOCK_CONNECTION: c = ((socket->m_server) ? 0 : 1); break;
  67     default: return;
  68   }
  69
  70   if (m_id[c] != -1)
  71     XtRemoveInput(m_id[c]);
  72
  73   if (c == 0)
  74   {
  75      m_id[0] = XtAppAddInput(wxGetAppContext(), socket->m_fd,
  76                              (XtPointer *)XtInputReadMask,
  77                              (XtInputCallbackProc) _GSocket_Motif_Input,
  78                              (XtPointer) socket);
  79   }
  80   else
  81   {
  82      m_id[1] = XtAppAddInput(wxGetAppContext(), socket->m_fd,
  83                              (XtPointer *)XtInputWriteMask,
  84                              (XtInputCallbackProc) _GSocket_Motif_Output,
  85                              (XtPointer) socket);
  86   }
  87 }
  88
  89 void _GSocket_Uninstall_Callback(GSocket *socket, GSocketEvent event)
  90 {
  91   int *m_id = (int *)(socket->m_gui_dependent);
  92   int c;
  93
  94   switch (event)
  95   {
  96     case GSOCK_LOST:       /* fall-through */
  97     case GSOCK_INPUT:      c = 0; break;
  98     case GSOCK_OUTPUT:     c = 1; break;
  99     case GSOCK_CONNECTION: c = ((socket->m_server) ? 0 : 1); break;
 100     default: return;
 101   }
 102
 103   if (m_id[c] != -1)
 104     XtRemoveInput(m_id[c]);
 105
 106   m_id[c] = -1;
 107 }
 108
 109 void _GSocket_Enable_Events(GSocket *socket)
 110 {
 111   _GSocket_Install_Callback(socket, GSOCK_INPUT);
 112   _GSocket_Install_Callback(socket, GSOCK_OUTPUT);
 113 }
 114
 115 void _GSocket_Disable_Events(GSocket *socket)
 116 {
 117   _GSocket_Uninstall_Callback(socket, GSOCK_INPUT);
 118   _GSocket_Uninstall_Callback(socket, GSOCK_OUTPUT);
 119 }
 120
 121 #else /* !wxUSE_SOCKETS */
 122
 123 /* some compilers don't like having empty source files */
 124 static int wxDummyGsockVar = 0;
 125
 126 #endif /* wxUSE_SOCKETS/!wxUSE_SOCKETS */